Canberra9.6 Overbank flood return to river channel

Supporting information

This process occurs in the Canberra region; however the volume could not be quantified due to the lack of both data and a suitable quantification approach.

As neither the overbank flood spilling nor return to river channel could be quantified, the impact upon the surface water store in the Water Accounting Statements would not have been as pronounced. Although some flood waters would have replenished groundwater within the region and evaporation or other losses to floodwaters would have occurred, most of the overbank flood spilling would have returned back to the river channels. The natural topography of the Canberra region would result in all the flood waters within the Queanbeyan flood plains returning to the river channel prior to flowing out of the Canberra region.